Rolling-mill.



A. F. NELSON.

ROLLING, MILL.

APPLICATION nuzn SEPT. 11. 1915.

- Patented Sept. '25-, 191?.

2 SHEETSSHEET l.

A. F. NELSON.

ROLLINGMILL.

Patented Sept; 25, 1917.

2 SHEETS-SHEET 2.

- attozne l APPLICATION FILED SEPT. H, 915. 1,241,242.

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ROLLING-MILL.

Specification of Letters Patent.

-Patented Sept. 25, 1917.

Application filed September 11, 1915. Serial No 50,236

To all whom it may concern:

Be it known that I, ARTHUR F. NELSON, a citizen of the United States residing at Harrisburg, in the county of lbauphin and State of Pennsylvania, have invented certain new and useful Improvements in Rolling-Mills; and I do hereby declare the following to be a full, clear, and exact .description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to rolling mills, and more particularly to the auxiliary rolls, known as side rolls for such mills.

These rolls are employed for the purpose of effecting a side action or rolling on a bar, while the main rolls are simultaneously acting on the top and bottom of the bar.

In order to obtain proper co-action of the two main rolls and the side roll, the center lines of the three rolls should lie in the same plane. The side rolls are necessarily mounted between the necks of the main rolls, and the adjustment of the side roll after each adjustment of the main rolls, has been tedious and cumbersome.

The object of this invention is the construction of a mounting for a side roll which can be rapidly and easily adjusted, even when the mill is in operation, independently of the main rolls, so that the main rolls do not have to be stopped to adjust or replace the side roll, as is the case in all rolling mills with which I have had experience.

A further object is an arrangement whereby the side roll may be readily removed from the casing and replaced by another, when it is desirable to changethe size or shape, or both size and shape of the rolling surface.

Referring to the drawings, inv which like parts are similarly designate d- Figure 1 is a front elevation of the side roll carrier shown in position between the necks of a pair of main rolls.

Fig. 2 shows the side roll and its carrier in plan view.

Fig. 8 is a side view thereof, and

Fig. 4 is a vertical central section.

In said drawings, H is the housing or frame part of the mill T is the top roll, whose neck N is mounted in an adjustable saddle S, and B the bottom roll whose neck N is mounted in a bearing J. The above structure is the usual one in rolling mills, and needs no further description for an understanding of my invention.

The side roll 1 is mounted in a casing or carrier consisting of an upper part 2 and a lower part 3 the two parts fitting together at their'meeting edges, and being held interlocked against rotary displacement by means of a projection, as 1, on one part, and a corresponding recess or notch 5, on the other part, Fig. 3.

The side roll carrier as shown in Figs. 2, 3 and 4, is open on the front end toward the main rolls, the side roll projecting therefrom for cooperation with the main rolls Tand B, to form the desired pass.

The side roll rotates on a stationary central pin 7, whose ends are held in top and bottom parts of the casing. The lower end of the pin 7 has a reduced portion 8 that forms a shoulder which prevents the pin from dropping through the lower part 3 of the casing.

The upper end of this pin is of full diameter and extends through the upper part 2 of the carrier and is provided with removable, diametrically Yoppositely arranged dowels 9, whose square heads 10 engage in similarly arranged slots 11 in the wall of the opening in the upper part 2 of the carrier, through which the upper end of the pin passes.

These dowels 9 are loose, and may be turned 90 to present new wearing surfaces of the heads 10 to the sides of the slots 11.

By making the bearing pin 7 for the side roll full diameter at its upper end, this pin may be readily lifted from the casing to permit the removal of the side roll through the opening in the casing throughwhich the side roll projects.

In the upper end of the pin 7 is an oil pocket 12 having radiating oil holes 13 communicating with oil ducts 141: at the surface of the pin 7, A constant flow of oil is supplied to the pocket 12 from any suitable type of oil .supply device.

The sides of the side roll casing extend into recesses 15 in the housing H, and the upper faces of the portion 2 of the casing that extend into these recesses have level surfaces flanked by upwardly extending flanges 16. These flanges serve to prevent the displacement of liners 17 used in alter- 22. Bolts 23 anchored in the housing H pass through the holes in the lugs 22 and have nuts 2 1 and 25 engaging opposite sides of the lugs. By means of these nuts the wedges 19 are moved, and theirposition controlled to rigidly hold the casing and the side roll in its horizontal alineinent after the liners 17 of the required thickness have been placed in position.

The rear walls of the two connected portions 2 and 3 of the casing are preferably but not necessarily conformed to the side roll 1 and shaped to provide a boss 26 with a recess that is covered by a plate 27 secured by bolts 28 to the boss. Thisplate 27 serves to retain in the recess the round head 29 of a screw 30 having a squared end 31. The screw 30 is threaded in and passes through a yoke 32 whose ends are provided with vertical slots 83 through which pass bolts 34 anchored in'the housing H. Nuts 35 and '36 on these bolts hold the yoke 32 in position.

By means of the screw 30 the casmg and side roll are adjusted toward and from the pass. I

Projecting from the rear of the lower portion 3 of the casing are supports 37' on which the yoke 32 rests, and which serve to support the yoke when the yoke securing nuts 35 and 36 are'loosened. v I

In adjusting the roll 1 to or from thepass by means of screw 30, the wedges 19 must be slightly loosened, and tightened again after the adjustment. The wedges 19 when loosened'move to'and fro with the movement of the side roll casing. When it is desired to raise or lower the side roll, the wedges 19 are loosened and one or'more liners 17 are removed or inserted, and wedges 19 again tightened. The joint between the screw 30 and the roll casing 2, 3, has sufficient play to permit verticaladjustments of small fractions of' an, inch, but when longer vertical adjustments are made nuts 36 are lowered to permit corresponding vertical movements of the yoke 82, the slots 33 permitting this movement. The friction between the inclines 18 and wedges 19 will be suflicient to cause theloosened wedges 19 to movelongitudinally with the side 'rollcasing, when it is adjusted to and fro.

It should be noted that any adjustment of Copies of this'patent may be obtained for the side roll required by the work being done, may be made without changing the position of the main rolls or any of their fixmeans to horizontally move said casing and I adjust it to and fro independently of the vertical movement.

2. In a rolling mill, thecombination with a housing having recesses therein, ofa side roll casing having depending inclines'at its sides arranged in said recesses, wedges in said recesses cooperating ith said inclines to wedge the housing in said recesses, lugs on said wedges, bolts anchored in said lionsing and passing through said lugs, andnuts on said bolts on both sides of said lugs, said bolts operating as power means to move the wedges longitudinally 'to vertically adjust the casing, and. also operating as retaining means to hold the wedges in: adjusted position.

3. In a rolling mill, the combination with a housing having recesses therein; of a side roll'and a side roll casing comprising an upper and a lower portion connectedv together, liner retaining flanges on the upper casing portion adjacent said housing recesses, inclines on said lower casing portion depending in said recesses, adjustable wedges supporting said inclines and whose lower surfaces are stepped and engage corresponding surfaces in the bottoms of said recesses, lugs onsaid wedges, bolts anchored in said housing and passing through said lugs, nuts on said bolts on both sides of said lugs, a stationary yoke, and'a'screw in said yoke for moving said casing back and forth.

1-; In combination with a rolling mill housing, a side roll casing divided into an upper and a lower portion, a boss on said casing, a headed screw rotatably secured in said boss, a yoke through which said screw passes, bolts anchored in the housing for supporting the ends of said yoke, and supports projccting from the lower casingportion beneath said yoke to hold the-yoke when released from its bolts;

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

' ARTHUR F. NELSON. Witnesses: q

Gno. 7. Parsons,

ROBT. S. GRAYBILL.

five cents each. by addressing the Commissioner of Patents. Washington, D. C. 

